Metal-ben ding machine



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METAL BENDING MACHINE.

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. C. KLING.

l METAL BENDING MACHINE.

No. 585,214. r Patented June 29,1897.

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Patented June 29,1897.

C. KLING.

(No Model.)

METAL BENDING MACHINE. No. 585,214.

4 Sheets-Sheet 4.

(No Model.)

C KLING METAL BBNDING MACHINE.

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PATENT CHARLES KLING, OF CHICAGO, ILLINOIS.

METAL-BEN'DING MACHINE.

SPECIFICATION forming part of Letters Patent No. 585,214, dated June 29,1897.

Application led April l5, 1896.

T @ZZ whom t may concern.-

Be it known that I, CHARLES KLING, a citizen of the United St-ates,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Improvement in Machines for Bending BarsHaving Flanged Sections, of which the following is a specification.

The object of the invention is to provide a machine adapted to bendperfectly a variety of plane-faced bars or beams, and especially flangedbeams.

In the accompanying drawings, Figures l, 2, and 3 are respectively aplan, a side elevation, and a front elevation of a machine embodying myinvention. Fig. 4L is a view,

-partly in section, illustrative of devices concerned in adjusting theguide-rollers. Fig. 5 shows the devices of Fig. 4, looking toward theleft in that ligure. Figs. 6 and 7 are respectively an end View and anaxial section of one of the bending-rolls. Figs. 8 and 9 are figuresshowing, respectively, an end view and an axial section of one of theother bending-rolls, which differs slightly from the roll shown in Figs.7 and 8.

In the drawings, A B B B2 B3 is a rigid frame supporting the workingparts of the machine, and C D E are bending-rolls mounted upon the freeprojecting ends of shafts carried by the frame. Power is applied to themachine by belt-pulleys P P', rotating in opposite directions andalternately engaging their common shaft by means of clutches P2 P3,without novelty. This shaft in rotating imparts motion to the twin rollsC D by means of an ordinary train of gearing P4 P5 PG P7 Ps P9 P10 P11P13 P12 and P1L1 P15, the last two elements being equal gears upon theshafts of the rolls C D, respectively. The shafts last mentioned rotatein fixed bearings in the frame, while the shaft of the third roll E ismounted in bearings arranged to slide vertically in the frame and israised and lowered parallel to itself by two screws S, connected withsaid bearings and having themselves rotary motion only. The screws arerotated equally and synchronously by a-power-pulley G, driven at will ineither direction by shipping upon it one or the other of twooppositely-moving belts normally running upon two idle-pulleys Gr' G2,respectively. The motion of the sei-n1 No. 587,595. (no man.)

pulley is transmitted to the screws through the pulley-shaft, gears S5S1, shaft S3, worms S2, and worm-wheels S' upon the screws, re-

. spectively.

The roll E is driven from the shaft of the roll C by means of gears P14F F' X, the lat-- ter being upon the shaft of the roll E. The gears F Fare carried by links F2 F3, swinging about the axes, respectively, ofthe shafts C E. Obviously vertical adjustment of the roll E changes therelative positions of the gears which drive it, but does not interferewith their engagement. Each roll is transversely divided and theseparation of the parts forms a slot J to receive the flange, if therebe a flange, upon the beam to be bent. One part of each roll is rigidlyfixed to the shaft, and means are provided for moving the-other partlongitudinally of the shaft to vary the width of the slot, so that itmay closely fit any iiange or may be closed entirely, if desired.

The rolls C D are alike, and the roll E differs from them only in thelocation of the slot, and hence only the roll E (shown in Figs. 8 and 9)will be described in detail. Upon the free end of the roll-shaft is acup-like sleeve E', formed integrally with the part E2 of thetransversely-divided roll and rigidly fixed to the shaft by means of aflanged bolt E4 and a spline K. Upon this sleeve is' a second sleeve E6,rigidly connected with the other portion of the roller and projectingbeyond the end of the shaft. This second sleeve slides upon the first,but is prevented from rotating thereon by a key K. A plate E7 extendsacross the outer end of/the sleeve EG, and through it passes the freeend portion of the bolt E1. A nut working upon the bolt serves foradjusting the distance between the parts of the roll, and it is obviousthat whatever space-widening strain is exerted by a bending iiange lyingin this. space no end thrust of the shaft results.

The meeting faces of the divided roll are provided with annularfacing-blocks E3 E9, of steel, which form the parallel plane walls ofthe slot J. They are both removable and reversible, and the workingangles of each may be one rounded, one sharp, as shown, or may have suchother form as may be desired or needed to fit the flanged beam orangle-iron to be bent.

IOO

It is evident that by means of the bolt E4 the roll can be readilyadapted for bending an internal or an external flange having width andthickness within reasonable limits.

To avoit wind in the beam operated upon-that is, to keep its faces intheir normal planes-cylindrical rollers H ll. are mounted, respectively,alongside the path of the entering beam and alongside the path taken byit in leaving the rolls. The rollers are so arranged that their axes arealways parallel to the plane of the bending-rolls, but provision is madefor adjusting the distance of each from that plane for raising andlowering each bodily and for varying the inelination of each in its ownplane. The mounting of the two rollers being similar that of one onlywill be described. The roller H is revolubly mounted in a forked bearingH12, which is itself revolubly adjustable upon a shaft 112, parallel tothe roll-shafts, and carried by links II: llt, mounted to swing aboutthe axis of the shaft oi' the roll C. As the sha-ft ll2 swings with itslinks the roller ll will be raised or lowered, as the case maybe.

At the upper side of the bearing H12 is pivoted a nut IPO, in whichworks a threaded rod lis, having one end swiveled and pivotcd in a yokell, pivoted to the main frame. ly rotating this rod while the shaft lil2is stationary the inclination of the roller is changed. rlhe shaft Il isfixed in any desired position by means oi' a set-screw ll, working inone of the links against a bar ll, which slides in a slot in the linkand is secured at one end to the main frame. A portion ol the shaft IPis threaded, and upon this portion works a nut HT, arranged to carrywith it thc bearing H12, and thus to adjust the distance of the rollerfrom the plane of the bending-rolls.

It is to be observed that the two rollers are independentand that'therefore the pressure exerted by them upon the beam may have anydesired ratio that the ex'igencies of the particular ease may require.llf it be considered that proper working of the rollers depends upontheir being perpendicular to the direction of the impinging1 beam andthat the direction of the beam and the location of its path both varyvery greatly under the varying conditions of practical work, theimportance of each adjustment will be evident.

lVhat I claim isl. The combination with a set of bendingrolls, of aguide mounted alongside the entering path of the member to be bent, asecond guide placed alongside the leaving path of said member, means forindependently adjusting the distance of the guides from the plane of thebending-rolls, and means for independently moving each guide bodily,with its axis, parallel to the plane of the rolls.

2. The combination with a transVersely-di vided bending-roll,of theannular, detachable and reversible facing-blocks secured to the parts,respeetivelyand each facing the plane of division and having itsopposite working faces unlike.

8. The combination with the three beinlingrolls, of aguide-rollermounted alongsidethe plane of said rolls with its axis parallel to saidplane, and means for swinging the roller bodily about the axis of one ofthe rolls.

4. The combination with Ithree bendingrolls in a plane, of a guide-rollmounted parallel to that plane, means for varyingits distance from thatplane, means for raising and lowering it in its own plane, and means forvarying its inclination in its own plane.

5. The combination with the bending-rolls of a cylindricalguide-rolleralongside the entering path ot the member to be bent, a likeroller alongside the leaving path of said member, means forindependently moving said rollers bodily, with their axes, in planesparallel to the plane of the l )ending-rolls, and means forindependently adjusting the distance of; each from the latter plane.

ln witness whereof I have hereunto subscribed my name, on this ld day oiApril, in the presence ol` two subscribing witnesses.

CHARLES KLING.

\\f'itnesses:

OLoF KLING, F. 1I. DEANE.

